Screening and cooling conveyer



Jan. 8,1935. J4 N` V'ANDEGRIFT 1,986,950

SCREENING AND COOLING CONVEYER original Filed March e, 1929 2 Sheet-sheet r1.

` INVENTOR E y ATTQRNS Jan. s, 1935. J. N. vANDl-:GIFT 1,986,950

SCREENING AND COOLING CONVEYER A original Filed March a, 1929 2 sheets-sheet 2 l INVENTOR VMM* MEW ` 4 Patented Jan. 8, 1935 l r` f t o fyisasso" o i SCREENINGIANI1COOLING;CONVEJIER.`

" NQ'VandegriftiV New York, N. Y.; assignor i.

` f to International"BiturnenoilCorporation.Newe` v YorlyN. Y.. a corporation offDelaware comin'nation` ofamilicatin-"serial, Ndfwss,

i .1 March s, 192m` This appiieationnugpst 14, 1

11.930; Serielle-415,143 i t .n `(c1.'zo9+`so7) i o l `lris a. sidefelevation'of aconveyelr'embody. ing"v `the invention ywith a `portion thereof t 1 taken on1a sectionv substantially central ofthe length Vof friiisiis agcoiinaticiif pinication oiy co4l pending application Serial Number 3.1.5,33i,7filedV -12 Coke is'ldischarged froma lowtemperature fdisl 10:3tillation'llretort at approximatelyy850 `F. a tem- 1513 largefinass Ltliatllikel-lioodff 'combustion is prevented. Moreover, yit has been found tIiatrcoke coke discharged from a low temperature distilla 2M tionflr'etbrt; orother device and for handlingrany suitablematerial ..Yv o i, i

A 'further object of thelinvention'is to provide means-for removing the coke-fromthe" retort dischargeandffforf transporting it fto' the place of 306i collection, Whilefthe coke is being 'cooled'.` r

glAc'cordingfto thei present invention;` the coke `is permitted to Vrapidly cool bydischarging theV same t upon-fia' continuously; moving endless conveyer which is moving at a speed slow enough to permit 35@ tliejcoketobecomercooled during theperiod between thetii'ne: of i discharge onv t`o`- the l"conveyer i andthe time of discharge from the conveyeriiA To accelerate i the "cooling of the coke, the pnveyer iS-so designed `"andfconstruc'tedas to permit the 4m? introduction of air` to` allliparts of theA lumps or i ma's's- "otjlcioll'ey spread upon the conveyer. i' Such introduction of uair ismade 'possible byfproviding a 45H veye'r :ibyi-afspaceof lsuch dimensions asfto perthgexready `circulation of air ybetween uthe re- `queiice th {,Oresiingilvonihevseteh o ,i t .n [Other objects and features of this invention will become apparent by reference' to the accomiziany-` irculation e of `air through Y the .o coke ion. zconsideredl-inconnection with i the 551i dlr. Wioesvtormilna Per# .Oftiiesama wherein:

1- This. invention r` relates to' `1 conveyers f and more 1j parti'clulai'fli'r.` to conveyers for removing and at the same timerexpe'ditingthe cooling of cokexdis-4 charged from a low"tempei'ature-rdistillation.coalA perature l suiiicient'. lto support combustion if the t c'oleifisnotf properly cooled. It has been found iiilpractice @that c'okef-is permitted to cool `to i, approximately Q40? F. 1 before `itis collected in a tive 'floorsi f the conveyer and ,as a` conse? etailed description cfa preferred form of theA theconveyer; :u l n".

limi

Fig. 1,

".Fig. 1-3 1 is favsection Fig.

Flg modification, of the invention, and a o fvEig.l 5 `isa similarA section voffastillf-,furtherA modification of the invention. i f

- Referring :now 'to the `drawings `there f catedia conveyer embodying the: present inven-` tion; which conveyer comprises upright supporta4 ingemembers 111"at eachiend betweenLwhich ex tend a pair ofihorizontal .supportingbars 12 ini theshape i of :substantially 'angle-` irons. @Extendi- 1` ing upwardly and inwardly..` fromA the supporting bars12 -andffrom oppositewpointsthereof areHa` t numberz of supportingunembers 13 havingfat Surfaces `14to Ythe top vof whichare secured in` anyV desired manner a pair of angle barrails 15.1V De-L pending from the. supporting 'members l 12 are., a

f number `of hangers' 16 i togfwhich `are i :secured L a paircjof anglefbar rails17n-Thesefupper and lower railsl'a'nd I'Tserie as' tracksfor the passageof rollerconveyer members joined in such aA manner as to fpermit ane'ndless chain. i The construction of `the t articulated roller conveyer sections is substantially as follows: i A` number of rollers 18 are connectedeachto thevsucceeding o one by rmeans `of a 'bar19.\""\These bars 19 are so connectedlto the rollers asto permit the same to pass overfaridaroundiidler and driven wheels.' Y

shown^inFig.j2,'th connecting bars 19 are extend `inwiairdlyl-gand nh'ave secured to the tops thereof a bed'i'plate xmember'21.

side'plates 22 provided witha number of openings 23',the purpose of whichwill be' explained hereinf after in ,detail As shown in FigiA 3,

overlapthe front curved edge of thesucceeding plate ltoform a continuous iloor.'l The plates 22,1

in "addition to` having aY rearward; slant, are provided With avertical portion', more clearlyshown at 25. l f Secured between" each of the plates 22 at approximatelythepoint of the end ofthe verticali.

Lis Aan enlarged 'verticalsection of a` the .forward edge of eachl bedplate 21\is.curved downwardly as at 24 iso that the straight rearedge of each `bed plate may being discharged between adjacent plates. Of

necessity, the screen door members 26 are of slightly less width than the sid'ef'plates" 22 so that this overlapping may be accomplished.

Mounted at one end of thesupportingjstriictur y is an idler roller 27, while at the opposite '-.fridfifsr mounted a driven sprocket roller 28'for driving the endless chain madeup offlanumber'of-#sewd tions constructed in accordance with thefollow- 'f ing. The roller 27 is journalled in bearing blocks 29,'-which blocks 29 are horizontally rncvalole;to-

permit adjustment `of the conveyer. This horizontal /niov'em'entfis 'accomplished' by means nlof nuts "30'I passing'I through an .'inverted'.- U-shaped Iil'iemb'ery '31 with the lrespective. :ends ofvthe :nuts

30 resting against the sides of the bearingzblocks l 2,9. By' loosening or withdrawi=ng one nutS Dinand tightening or advancing the other nut, horizontal movement -o1' thev block .29Y maybe v.ciccasioned-l and the same locked in place by the same nuts'. iA' similarwconstruction"is provided for the', driven sprocket roller :128, similar reference characters., with 4theiaddition of a'primel'for each Ythereof l theuses thereof are not .to lbe limitedto-coke handling :since the :conveyer: operates efficiently i for -za multitude. of purposes. 'Ineinvention is to Y designating similar parts..

The operation' of the'conveyer in use is. substantially as follows Power' to;l cause natation of the, sprocket roller. 28 `is supplied kby any convenientv source, not shown; Withtthe Vendlessv chain made up of similar sectionszas previouslydescribedyin movement, 'which movement fis .relatively slow, 1 coke is discharged fromalow .temperature distil-l lation coal retort'ffnot. shown) uponlthe end'of4 the conveyer near theidler roller'27. The coke of necessity Afalls directhf upon :the .l upper fionrf.; made up'of the successive'screen members 26 andthesescreens 26k lmayibent such mesh as to permit;

theA s o-called fflne'stonpass throughlthe screen;v coming to restuupon, 'the-solid vfloor madeiupxof successive solid plates 121. The.: lump coke` re-j mains upon the vtopof the screens 26to a 'depth. not exceeding Vthe height `:rrofthe perpendicular portions 25 of the side plates 22; Asithe conveyer continues its slowY movementm from, the idler rollerl to the driven roller, .aircomes into contact/:with all surfaces of the lump colre-remainingfuponV the screens. Due'tof thepresence' ofthe openings 23 in the side plates 22,it is possible-tosubject the.Y

undersides of the coke toffthe cooling;A actiomfof air either in a 'naturaldraft orsbysforceddrafti trated iii-Figs. 1 to 3finclfusivei=thaszbeem found in practice thatthe lengththereof may bef-ma@ terially shortened/.due to thetactgthatwhen the lumps of cokefresting on the screensrreach-/the end; of normal discharge instead ofbeing dumpedA from the o onveyentheyfal'l in such av manneri:as.

ited since the time 'offtravelf'of the material'ftobe cooledv can be` doubled bylettingA the. lumps. ofcoke l travel first on topoffthefscreenthrough onefreacli'l of the conveyer-landt second-I travel onl whatizas'.

the bottomy of the.v screen .through thesecondreach i of the conveyer. In any event the fines which cool a great deal more rapidly than the lumps are dumped at theend of the conveyer remote from the point at which they are deposited thereon.

In the event it is desired to cause positive dumpingof the lumps at the nonnaldischarge end of theconveyer either one of the inodications illustrate'd in 1iigsL44 and 5 may' beutiliz'ed.'r In these modifications all parts of the conveyer are similar with the exception that in Fig. 4 instead of utiliz- .jingja screerrriforthe top of the conveyer upon Vwhich the coke is, to rest use is made of a foraminatedpljatel' h h jhas an angular extension 52 serving 'to causefthe positive dumping of the coke from the discharge end ofthe conveyer. In Fig. 5 use isi'als'o ma'dei of la'foraminated plate 51 which V has-a verticalright-angular extension 53 serving 'the'same purpose asthe extension 52. j The-operation of the conveyer when made up of these modifications is substantially similar to that;.previouslydescribed .with :the: exception .that

positive dumping fofv bothuthe fines and the lump, materialuis assured'fat the normal dischargeend:

oftheconveyenrsince ltheextensions 52 or 53 preivent the lumps from falling onto the normal under;

side ofztherplatelof: any ofthe various conveyer sectionsi".

It is to be .present is :.capable. of modicationzandwhile the device has been'. described las lusedv Y,in connection with the handlingof1 Ycoke it is to; be `understoodthat prising a plurality of Asimilar sections, each having afloor plate, aperforatedoorspaced above saidfloor plate, and a plate extending vupwardly from;

thewforward edge of' saidperforated floor, said sectionsv beingioined toform an endless-chain.,

plate Lintermediate the said platesl and extendingAA overgsaid floor plate, anda `perforated plateextending upwardlyfromthe forward edgepf saidv -rst mentioned perforated plate, said -side plates being provided with openings for thecirculation of air,l between-,the floor plate Dand ftherst menationedperforated plate..-.

material and .conveying same `comprising, a. series of larticulatedLA sectionsjarranged as endless-y #Whenr the conveyer used is of the typen-'illus linked conveyer, which-j sectionsA comprise aperforated platefor-receiving the hot material, the

perforations vin said plate being'adapted to permit f fi-nes in said, material to pass therethrough while retaining lumpsthereon, a door beneath saidper foral-ed plate and; spaced :therefrom and movable the withVforI-receiving saiddines,y and side walls forsaidgsectionsfor retaining-.said lumpsof material on ysaid lperforated, plateand said fines on said floor,A Athe side. wallsibetween said floorand.

said perforated' "plate being provided with open? ingsr for' the passage of air therethrough.

A device for cooling andconveyingcoke and the'like comprisingl` articulated sections of' an, endless conveyer havingfaiioor plate', side walls;` vaperforatedplate supported yby 'said sidewalls-V andi spaced above said floor i plate, i and openings in said side walls permittingV the-passage ofarf n v1,988,950 `through said openings over iines on said `oor f y plate and through perforations in said perforated `plateand about lumps of material thereon to separately air cool said iines and said lumps.

5. A device for cooling lumpy carbonaceous i material and conveying samev comprising a per- Y forated receptacle for receivingthe hot material in a` layer, the perforations in `said receptacle being adapted to permitiines in said material to pass therethrough while retaining lumps of `said material thereon and for permitting the passage and floor and means for discharging cooled material from said perforated receptacle and said iioor, said device being apertured so that air from the outside can pass through said perforations in said receptacle and about said lumps thereon to` cool said lumps. 1 y

`6. A device for cooling and conveying coke comprising a travelling screen adapted to receive a thin layer of hot coke, a iioor beneath said screen and spaced therefrom and `travelling simultaneously with said screen, the side portions between said screen and the iloor therebeiow being apertured so that air can pass from the outside of said device between said screen and said floor and up through said screen and about coke on said screen to cool nes of coke onsaid oor and lumps of coke on said screen. i i i JAMES N. VANDEGRIF'T. 

